IMO Mathematics Olympiad Class 9: Questions 104  108 of 919
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Question number: 104
» Lines, Angles and Quadrilaterals
Question
The value of x in the given figure is ________
Choices
Choice (4)  Response  

a.  130˚ 

b.  120˚ 

c.  114˚ 

d.  118˚ 

Question number: 105
» Lines, Angles and Quadrilaterals
Question
In the figure, bisectors of ∠Q and ∠S of a quadrilateral PQRS meet RS and PQ produced at X and Y respectively. Then is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 106
» Lines, Angles and Quadrilaterals
Question
How many sides does a regular polygon have, each angle of which is of measure 108˚?
Choices
Choice (4)  Response  

a.  5 

b.  7 

c.  8 

d.  6 

Question number: 107
» Lines, Angles and Quadrilaterals
Question
DEF is an equilateral triangle for side. A, B and C are midpoints of DE, EF and DF respectively. The area of triangle JKL is (in) ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 108
» Lines, Angles and Quadrilaterals
Question
In the figure the bisectors of ∠PQR and ∠PRQ intersect each other at O, then ∠QOR is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

